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Carmex Carbide Tiny Tool - Threading - MIL - UNJ (UNJC,UNJF,UNJEF,UNJS) - BMK Grade - 5mm Minimum Diameter x 18mm Reach (Left Hand)
| Application | Threading (MIL) |
| Thread Form | UNJ (UNJC UNJF UNJEF UNJS) |
| Pitch or Pitch Range | 20 |
| Minimum Diameter | 5 |
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Description
The Carmex Carbide Tiny Tool for Small Threading (UNJ MIL) is a precision cutting tool designed for small threading applications. Featuring a UNJ thread design for high-accuracy threads, this tool is crafted from premium BMK-grade carbide to deliver durable performance in miniature components. Its compact form accommodates tight spaces and it’s built with a 5 mm minimum diameter and 18 mm reach, plus left-hand threading, making it versatile for a wide range of machines and setups.
- Small-diameter UNJ threading for tiny parts: Enables precise UNJ threads on miniature components, improving fit, function, and reliability in tight spaces.
- BMK-grade carbide for durability: Premium carbide resists wear and maintains sharpness, delivering consistent cut life across multiple jobs.
- Wide compatibility with left-hand threading: Designed to work with many machines and systems and supports left-hand UNJ threads for broader application coverage.
This tool helps you streamline your threading workflow by delivering accurate results where space is limited. Its durable carbide construction reduces downtime from tool wear, while the compact geometry enables efficient setups and repeatable performance across demanding small-part applications. With reliable UNJ threading and broad machine compatibility, you can expect consistent, high-quality threads that accelerate assembly and reduce rework.
Part Numbers
- Protool Part Number
- MIL5L1820UNJBMK
- Brand
- Carmex
- Category
- Tiny Tool Inserts
Delivery
Free UK mainland delivery on orders over £50 ex VAT. In-stock items ordered before 4:30pm are dispatched the same working day. Full delivery information.
Returns
14-day returns on unused stock items in original packaging. Special-order and bespoke tooling is non-returnable. Read our returns policy.
Technical Support
Over 30 years of machining experience behind the counter. Call 01732 887334, Mon–Thurs 8:30–17:30, Fri 8:30–16:30.
Trade Accounts
Credit accounts, contract pricing and scheduled call-off orders available for trade customers. Apply for an account.
What time are Protool open?
We are open Monday to Friday between 8:30am and 5pm.
Do you offer Free Next Day delivery?
Yes! We offer Free Next Day delivery via Royal Mail Tracked 24 on all orders over £50 ex VAT*. We also offer Free DPD Local Next Day delivery on all orders over £100 ex VAT*.
We also offer the following:
- Royal Mail Tracked 24 — £5.90 (FREE on orders over £50 ex VAT*). Order before 4:30pm for next day delivery. No signature required.
- DPD Local Next Day — £8.00 (FREE on orders over £100 ex VAT*). Standard next day delivery to UK mainland addresses.
- Royal Mail Special Delivery — £12.50. Guaranteed delivery before 1pm the next working day.
- DPD Saturday Delivery — £25.00. Must be ordered on Friday before 4pm. Pre-12pm delivery.
For delivery to Scottish Highlands & Islands, Northern Ireland, Republic of Ireland, or overseas locations, additional charges apply. Please see our delivery page for full details, or call us on 01732 887 334.
*T's & C's and exclusions apply. Please see our delivery page for more information on all our services.
Full Range: Carmex Carbide Tiny Tools - Small Threading UNJ Tool (MIR)
View full collection →You are viewing MIL5L1820UNJBMK. Click any other SKU to view its full details.
| Product SKU | Pitch or Pitch Range | Minimum Diameter | Reach | Grade | Holder | Price | Stock | Order |
|---|---|---|---|---|---|---|---|---|
| MIR3L1532UNJBMK | 32 | 3.2 | 15 | BMK | SIM****H3 | £21.08 | 5 days | |
| MIR3L1532UNJBXC | 32 | 3.2 | 15 | BXC | SIM****H3 | £25.00 | 5 days | |
| MIR5L1528UNJBMK | 28 | 4.9 | 15 | BMK | SIM****H5 | £27.43 | 5 days | |
| MIR5L1528UNJBXC | 28 | 4.9 | 15 | BXC | SIM****H5 | £25.00 | In Stock | |
| MIR5L1820UNJBMK | 20 | 5 | 18 | BMK | SIM****H5 | £27.43 | 5 days | |
| MIR5L1820UNJBXC | 20 | 5 | 18 | BXC | SIM****H5 | £25.00 | 5 days | |
| MIR5L1820UNJK20 | 20 | 5 | 18 | K20 | SIM****H5 | £23.75 | 5 days | |
| MIR3L1532UNJK20 | 32 | 3.2 | 15 | K20 | SIM****H3 | £20.08 | 5 days | |
| MIR5L1528UNJK20 | 28 | 4.9 | 15 | K20 | SIM****H5 | £23.75 | 5 days | |
| MIR5L1528UNJTNX | 28 | 4.9 | 15 | TNX | SIM****H5 | £25.35 | 5 days | |
| MIL3L1532UNJBMK | 32 | 3.2 | 15 | BMK | SIM****H3 | £21.50 | 5 days | |
| MIL3L1532UNJBXC | 32 | 3.2 | 15 | BXC | SIM****H3 | £21.10 | 5 days | |
| MIL3L1532UNJK20 | 32 | 3.2 | 15 | K20 | SIM****H3 | £20.08 | 5 days | |
| MIL5L1528UNJBMK | 28 | 4.9 | 15 | BMK | SIM****H5 | £23.18 | 5 days | |
| MIL5L1528UNJBXC | 28 | 4.9 | 15 | BXC | SIM****H5 | £21.10 | 5 days | |
| MIL5L1528UNJK20 | 28 | 4.9 | 15 | K20 | SIM****H5 | £20.08 | 5 days | |
| MIL5L1528UNJTNX | 28 | 4.9 | 15 | TNX | SIM****H5 | £25.35 | 5 days | |
| MIL5L1820UNJBMK Viewing | 20 | 5 | 18 | BMK | SIM****H5 | £23.18 | 5 days | |
| MIL5L1820UNJBXC | 20 | 5 | 18 | BXC | SIM****H5 | £21.10 | 5 days | |
| MIL5L1820UNJK20 | 20 | 5 | 18 | K20 | SIM****H5 | £20.08 | 5 days |
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